Air conditioner



FIG. 1 is a perspective view of an air conditioner showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a plan view thereof, a bottom view being symmetrical to the plan view;

FIG. 5 is a right side view thereof, a left side view being symmetrical to the right side view; and,

FIG. 6 is an enlarged sectional view thereof, taken along line 6—6 of FIG. 2, with the broken-line disclosure of internal details being understood to part of the article in which the claimed design is embodied, but which forms no part of the claimed design. 

The ornamental design for an air conditioner, as shown and described. 